U.S. Medium-range Forecast: U.S. is hot south of an expanding cool pattern in Canada.
Chart of the day: 500 MB anomaly forecasts by all lead models past 30 days SKILL SCORE. Discussion: The ECM ENS skill score is consistently BEST at forecasting the North America weather pattern through 15 days for the past 30 days. The GFS ENS/CMC ENS are not far behind. However, the much-relied upon…